1 /*
   2  * Copyright (c) 2013, 2018, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 /*
  25  * @test
  26  * @bug 8000968
  27  * @key regression
  28  * @summary NPG: UseCompressedClassPointers asserts with ObjectAlignmentInBytes=32
  29  * @library /test/lib
  30  * @modules java.base/jdk.internal.misc
  31  *          java.management
  32  * @requires vm.bits == 64
  33  * @run main CompressedKlassPointerAndOops
  34  */
  35 
  36 import jdk.test.lib.Platform;
  37 import jdk.test.lib.process.ProcessTools;
  38 import jdk.test.lib.process.OutputAnalyzer;
  39 
  40 public class CompressedKlassPointerAndOops {
  41 
  42     public static void main(String[] args) throws Exception {
  43         runWithAlignment(16);
  44         runWithAlignment(32);
  45         runWithAlignment(64);
  46         runWithAlignment(128);
  47     }
  48 
  49     private static void runWithAlignment(int alignment) throws Exception {
  50         ProcessBuilder pb;
  51         OutputAnalyzer output;
  52 
  53         pb = ProcessTools.createJavaProcessBuilder(
  54             "-XX:+UseCompressedClassPointers",
  55             "-XX:+UseCompressedOops",
  56             "-XX:ObjectAlignmentInBytes=" + alignment,
  57             "-version");
  58 
  59         output = new OutputAnalyzer(pb.start());
  60         output.shouldHaveExitValue(0);
  61     }
  62 }